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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-01-08 16:24:38 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-01-08 16:24:38 +1100 |
| commit | 24f030175d30f019be41766cdf88c2ff03de19ff (patch) | |
| tree | 354232a84e82d5a721ed7b1a9af580ff2a59be8f /fs/filesystems.c | |
| parent | 4aa12f7b927c3cac0e0cf3503642597527d0ece0 (diff) | |
| parent | 9e42d0cf5020aaf217433cad1a224745241d212a (diff) | |
| download | kernel-crypto-24f030175d30f019be41766cdf88c2ff03de19ff.tar.gz kernel-crypto-24f030175d30f019be41766cdf88c2ff03de19ff.tar.xz kernel-crypto-24f030175d30f019be41766cdf88c2ff03de19ff.zip | |
Merge commit 'origin/master' into next
Diffstat (limited to 'fs/filesystems.c')
| -rw-r--r-- | fs/filesystems.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/fs/filesystems.c b/fs/filesystems.c index d0e20ced62d..d488dcd7f2b 100644 --- a/fs/filesystems.c +++ b/fs/filesystems.c @@ -253,24 +253,27 @@ static int __init proc_filesystems_init(void) module_init(proc_filesystems_init); #endif -struct file_system_type *get_fs_type(const char *name) +static struct file_system_type *__get_fs_type(const char *name, int len) { struct file_system_type *fs; - const char *dot = strchr(name, '.'); - unsigned len = dot ? dot - name : strlen(name); read_lock(&file_systems_lock); fs = *(find_filesystem(name, len)); if (fs && !try_module_get(fs->owner)) fs = NULL; read_unlock(&file_systems_lock); - if (!fs && (request_module("%.*s", len, name) == 0)) { - read_lock(&file_systems_lock); - fs = *(find_filesystem(name, len)); - if (fs && !try_module_get(fs->owner)) - fs = NULL; - read_unlock(&file_systems_lock); - } + return fs; +} + +struct file_system_type *get_fs_type(const char *name) +{ + struct file_system_type *fs; + const char *dot = strchr(name, '.'); + int len = dot ? dot - name : strlen(name); + + fs = __get_fs_type(name, len); + if (!fs && (request_module("%.*s", len, name) == 0)) + fs = __get_fs_type(name, len); if (dot && fs && !(fs->fs_flags & FS_HAS_SUBTYPE)) { put_filesystem(fs); |